Oil prices fall as U.S. drillers add rigs

By Jessica Resnick-Ault NEW YORK (Reuters) - Oil prices slipped on Friday, extending losses after data suggested drilling is ramping up in the United States, easing the focus on efforts by OPEC and other producers to support prices by cutting supplies. U.S. crude futures for March delivery fell 98 cents, or 1.8 percent, to $52.80 a barrel at 1:14pm EST (1814 GMT). The U.S. weekly oil and gas rig count from Baker Hughes showed that U.S. drillers added 15 oil rigs in the week, the 12th gain in 13